OFT logs and VirtualDyno
 

Has anyone tried converting the OFT logs to something VirtualDyno can read from? I tried opening one directly and it doesn't work, but I don't have any other logs that do work to compare the formatting to.

If anyone has a log that will work in VirtualDyno I would love a copy of the raw file to compare it to an OFT log and see what needs to changed to make it work.

*edit* - here's the working information for easier sourcing!

Open the log file in notepad, textpad, etc and remove the top three lines (above the column headers), then rename the following column headers:

"Time(s)" to "Time"
"Engine Speed" to "RPM"
"Throttle" to "Throttle Position"
"AFR" to "Lambda (Bank1) (AFR)"

Virtual Dyno will open it thinking it's a "Cobb Access Port" log, but it seems to work fine and give believable numbers.

Ecutek logs work for me in Virtual Dyno. Here is a log I did last summer.

http://datazap.me/u/dmmccrea/vt-c

interested.

Awesome, thanks! EcuTek is officially supported by VirtualDyno, but OpenFlash isn't yet.

Just taking a quick look, it might be REALLY easy to make an OFT log work though. The only glaring difference is that there are a couple extra rows of useless info at the top of the OFT csv file that aren't there in the EcuTek file. I'm going to strip them out and try again in a bit (gotta go down to my desktop).

I took a look at this too. Remove the empty rows so only the column headers are left. Now loading the files looks to have a problem with the column names so do the following. Rename "Time(s)" to "Time", rename "Engine Speed" to "RPM" and "Throttle" to "Throttle Position". It appears that it recognizes all column names and loads now.

So it works Now? :)

i am interrested too,
i have try to modify the log but didn't work anymore

I did this exact thing and it works like a charm. Highlight both the top rows and delete them, change the names as posted, save it and bingo. (now i have to go do more 3rd gear pulls).

Don't try to load up a full log, it'll be....interesting (685whp anyone? lol). I would recommend either editing a log or just doing a new one (i'd remove the rows before you go WOT in 3rd and after you let off, throttle position <9x%). It'll make everything cleaner.

100% agreed!

I was able to get it to load as well. My log was from an uphill on ramp so the dyno won't be accurate but it does load the log now.

and don't forget you have to choose the car (upper left side) and set the values (like weight).

GREAT STUFF!

I still need to understand how to fix if slightly uphill and how to understand if the pull is done properly or not, will make few test soon.

For ppl like me where for ONE launch on the dyno they want around 100euro this program is a life saver

I don't think there's really any fix for uphill, but if you do one pull uphill, then one downhill, just average the results. Still not 100%, but neither is Virtual Dyno 100% anyway. Properly is ~2k rpm to redline. WOT.

Is not properly working for me, Can't display past 5krpm
My dyno stop at 5,2k rpm. any suggestion?
Anyone can upload his csv file that works so I can compare with mine?
I think openoffice is fucking up the size of the column or somethingelse.

Any suggestion?

Open the CSV in a proper text editor, not in excel/open office/etc.

There's a few good threads on other sites with instructions on how to get GOOD logs for accurate Virtual Dyno charts. The long and short of it is that you NEED a good flat road as the starting point. The consensus on how to tell is to take a log in each direction and see how close they are.

like what?

I have used a text editor, I can't make it work to read past 5k rpm. It's getting annoying.

File Attached.
Have a look please.
@wparsons

Textpad, notepad, notepad++, etc.

makes not much sense

http://i59.tinypic.com/eqdp1i.jpg

i've run virtual dyno against a log i made while on an actual dyno, and the results were within 1hp. i'd say it's pretty damn accurate when done properly.

If the setup is done right, and the road is dead flat then you get REALLY good results.

If you're using it just for tuning purposes the road doesn't matter as much as long as you always do your pulls in the same direction. Your chart will be skewed from someone else, but it'll be accurate to past pulls/charts and it'll show you if you gained or lost power with whatever you changed.
@Victor Draken, I don't have virtual dyno here at work (or my working logs). I'll have a look tomorrow when I get home, not going straight home tonight.

i'm in florida, so it's pretty much all flat. i just put it in 3rd, stab the throttle wide open at 2.5k and run it out to redline. gives me nice repeatable results every time. pretty simple and effective really. great way to tell if what you're doing is helping or not, though i agree they're pretty much useless for comparison (then again, so it every dyno that isn't a dynojet).

If you're pulling in higher gears wind resistance will probably come into play, no?

thanks man, appreciated.

Will wait for your response.

I was having the same issue. Not sure why it fixed it, but I deleted a few rows down low (every other row), probably deleted like 10 rows only then reloaded and it worked fine after that.

Cool functionality for the OFT logs!

here's mine. 3rd gear e85 vs 91 octane.

can you post the log that work with it, so I can see it and compare with mine?

For anyone having the RPM stopping short issue, I found a fix. Change all of your throttle position values to 100. VD has an issue where it assumes non-WOT below a certain value (not sure what the value is or how to change that yet, im working on it). All of my TP values were hovering just above 90% above 4k or 5k rpm and it wasn't plotting those.

if the throttle is less then 92.63 VD doesn't count it as WOT.

Should we report it as a bug?

Can't hurt. However, if you go to File -> Options turn off TPS auto trim. You'll be good, but you'll definitely want to make sure you shave all non-WOT info from the log. :)

Good to know. Now I just need to find a properly flat road, my VD charts show 185hp and is not possible lol.

Is it WHP or crank HP?

WHP. click the sae button so you can make corrections to barometer (if known), temperature, and don't forget to edit the weight, tires (if necessary). The more accurate the info, the more accurate the graph. Also, you may want to change the smoothing on it as well.

Yeah I already did that. It's probably the road that is not good, need to find a better one. It's a problem around where I live ahaha

Virtual dyno has a frontal area parameter to take care of that.

what do you mean? if road is bumpy/not flat VD cant do much

I think he may have been referring to my post way back about wind resistance :)

Sent from my QMV7A using Tapatalk

that makes sense.

Yep, that's what happened. Edited the post to quote the proper post :D

this is interesting. i gotta try this out later

Here's another dyno of e85 after a few weeks of learning vs the same map shortly after flashing. Ignore the dip at the top, I hit a bump that triggered TC.